rutquist



Sept. s, 1925.

41,553,187 A. L. RUTQUIST.

RAFTER MxTR Filed ocx. 2v. 1,924

2 Sheets-Sheet 1 Sept. 8, 1925. 1,553,187

A. L. RUTCQUIST RAFTER- MITER File'd Oct. 27. 1.9 24 2 Sheets-Sheet 2llllllllllllll llllllldllllilll llllrlllllllnn Suomi* Patened Sept. 8,1925.

useful', Iinpmveinen ibV in Rfter B it'ersgf of Wliiohmhe' follow-ing?isle' specification.

Thefiimpi'eyeinents of my Apresent invention ingl'into lwhichmrbsfffold:

'A further the ents f-iipo`n';soiiie1 "af te 1;s :which are'impo'sfsible l Coobtin- :with niy f formen device.

A further objefet' tovv provide a devioe Wh-i'ehiequi'res noniiddleparitioning plate such es shownfand'-desribedininy formerapplieiiionginasmeh; as the guiding. gfrooyesj oi'i sgidnieinhers 'ereeut in vthe sides' ofsaid oontinerand'r extend therethrough, s aidjside-portions being's'e'pareble to p eijinitfhef.

assembly di `the parts. 'jf

A further-*end I attain my o bjeetsin 2iv tool lWhiohE 'I halye 1;

distneefrom 'their inner en'dsandr 'com 5 nect'said inner ends byInemhersfsoearrgrnged l opertio'nfy fir-e1 Qhereinfter'jinore fully5de'- euse seid @linneotion-si are Contained Williin the metellio Cas? vsid '*ngulerly ad] usbable LiiinproveineiitLeonsists in errang-. ingSeidl-@erts sofliat "additional nie1nbers`-. :Gambe pijo `i f1dedftolantoniatieally determine.

ye speeif' fiobject lis to 4 provide settingineans adapted toLonsib,libe e fixed-point for said niei'nbers,I which cannot i be.`x'rar ed, lie'zt'iisee`-slight xvariation throws thengiilafraidi'a'ngeinent 'ofi chev Inenibers out ,555 scribed withnefeijence to the -'age coinpzuiying' 1 7 drawings, insaid'clrgivijings, 'eAv Y' Figi' l S` 'e sdefelevtO- Q mit'en lYiiitliportionlof; fone, sid of tlief5` stock, which Serves ,as a )widen 26broken" away to' diseljose the `giio iveswhich 1 section 35 out; lrelnltiiely@to la ho ri/'Z(ir-italqplanefl that i', f1 shoiildfbeiin'ede,inthe iside Qffapjaek rat'e or the sidegefva'ferippletraite-r.:Memberr- Lb indioatesmthe ent ine-similar manner f whh shoiildbemedeonersde ofi.whilevor.eA vWilley reiger; Member o ndigzes n e simiv larmanner the plumb cut of a common rafter or a jack rafter. Member dindicates the plumb cut of a hip or valley` rafter and also indicatesthe cut of the sheeting which 5 is nailed to said rafters. Theadjustments of said rafter miter are all made preferably with referenceto' the member c. The angle that this member makes relatively to theupper surface of the metallic container g corresponds to the desired.pitch of the roof to be laid out. The angle that the @member d makesindicates the correct angle lfor the plumb cut of the hip or valleyrafters. The angle to which the member c is adjusted determines theangle at which the seat on the plate of the common rafters, `-jackrafters or cripple rafters should be made. This member also willindicate the angle of cutupon the sheeting which joins at the hip orvalley rafters, graduations h2 being marked on either of the flanges 71,f-or 71, of the metallic container g, the cut being made at the angleindicated by the member d when a set is made by said arm e upon saidgraduated scale. The angle that member fmakes with the edge of themetal- -`,liccasing g indicates the angle which the seat'jon the plateof the hip or valley rafters should make, .with the horizontal. Saidmember a is virtually a straight Hat bar pivoted on` a non-adjustablepin a and the inner end 1,2 .of which is connected to the inner end b2of the member b by T-shaped connecting member z'. The member l) is alsoa Istraight bar and is pivotally attached to thestock casing g by anon-adjustable pin VVb". The member c has an oifset port-ion c5 belowits pivot c and thus the inner end c2 makes an anglewith the remainderof said 40 member. Said inner Vend is also connected with said T-shapedconnecting member z'. The member d is pivoted about an adjustable screwd and the portion d3 of said member below 'said pivot .is curved so thatthe inner end d2 is out of alinement with the remaining portion'of saidmember d. The inner endrlzof said Vmember isalso pivotally connected tosaid T-shaped connecting member "71. The connection by which the innerend v2 is connected to said member is by means of a pivot connectionz".Vj The connec- .tion between the inner end b2 and said member i is madethrough thepivotvconnection 2.

to the membere throughma curved link 7aVV Awhich 'is fastened totheinner endlvezuby means of a "Said member e. is virtually a straightmember pivoted on its 6 noni-'adjustable pivotef The connection betweensaid member and said link 7c is made through a pivot connection jg. Saidconnection is also connected toa link l through a pivot connection j3,said link Z being pivotally connected to a link m through an adjustablepivot connection ml said curved connecting link m being fastened at itsother end to the inner end f2 of the member f through the non-adjustablepivot connection m2'. Said member f is substantially a straight memberwhich is pivoted upon a pivot member f.' pivot connection for saidmembers which are not adjustable relatively to said metallic casing in aslot are the pivot connections c and f as shown in Fig. l. The pivotconnection d is movable relatively in the slot n. cut in the side g ofthe metallic casing. Said pivot connection o is movable relatively inthe slot c cut in the si'de g2 of the metallic casing. The pivotedconnection b is adjustable relatively in the slot p cut in the side g ofthe metallic casing and the pivot a is adjustable relatively in the slotf/ out in the side g of the casing. The pivot z" is adjustablerelatively in the slot 7" cut in the side g2 of the metallic casing. Thepivot connection y'2 is adjustable relatively to the slot s cut in theside g2 of the casing and the adjustable member m is adjustablerelatively in the slot cut in the side g of 'the casing. As shown inFig. 4l` the pivot connection d is made adjustable by being providedwith a nut d4 threaded on a stud Z5 fastened to two spacers d6 and Z7 toeach side of the member d. Said nut Z4 is made with a portion ZS whichis slightly smaller in diameter than the remaining portion of said nutand which is exactly the same diameter as the circular apertures n andn2 that terminate each end of the groove a and the diameter of' saidstud Z5 is exactly the same as the width of the slot n. The portion ofsaid nut above said narrowest portion d8 thus forms a shoulder which isadapted to bear against said member g.

In Fig. 5 I sho-w a detailed view of a typical pivoted connection forthe remainder ofsaid member. This connection b is a rivet which holdstwo space-rs b3 and b4 at each side of themember b. The head b5 of ,saidstud like member is substantially the same diameter as the width ofsaidslot p soithat the sidesof said slot willform a guide wayV for themovement of said stud therein.

In Fig. l1 the portions f3 and f4 of said threaded together and hold thespacers f5 and f6 to said member 'f and the heads of each member passthrough'theside members g2 and glrespectively. In Fig. l0 the portionsofthe adjustable pivoted connection fm receive the same numerical suffixas do the Similar parts in Fig. 4g thus said parts The only pivotconnect-ion f shown in detail are m4; doesnotlha le anarrowedpertionibutslot n at tsbuter end.

thus thepa 1 y lls'tumentus being.carried`abofut.. .Thetiverelation-shipwith the iaperture;in?, andre f telef-Within, vsaid c ont'ainerl butwill assume the meniber Lmghtlbetermed the masterfjustablepmembersz;eaehiliavingone-cndp@ are lnumbered lrespeetively m,m', m4 m5, m so that the shoulderfZifits closely Withinthe i and'm."4 Inthis;pivotalfconnection the 11,111?y -`circular ,aperture n? Which4terminatesithe. er. n i Said;shoulder.'al8

saidnu't'mdsadaptedto.engage thesidegfiits lclosely.,Wvithinjsaidcircular aperture a? ot the steel;l vtO hold :thefmembers in set posi;tion; flfheflthreaded-'portiQIl-mf however, is, .said members 1' can Vbe adjusted.. YIZhengsaid-sV substantially thesame ldiai'neter.'as the.Width`l mastery-lever; d has beenfzadjustedvtothe Vde- 1- l y l j j isired ,positionit .is set in` thatfposition by Myliilstrumentds soconstructed. thatthe .tivhtening thenutem4 ofthe'pin To il-DgllliyldjStble Illlberu lt0 n;place.said. adju-stable members ,in the con-.-CluSi-vemey basati-rely cloncealediwithinlt-he vtemer-the nut mi isslacked 4oit,'the-11u11 Idi' metalli' co'ntaineng asshowvninliig."Landis also -slacled-.-oif.toi suchf-,a-n extent that A CallIlQt .injuredvvhenfsaiddthe' shoulderacZ- isv remoyedgtrom co--opei'a---- i.:

so vas -to permitsaidmembersntogbe scad-z .n slidestdthe lowersendy ofSaidygluidewayquf justedfandare'alsafarrangedgse:thatby litt-1.ybringing with itf, intheir Erespeetl-ive: Ways-,1. f; f

connecensv yvillWithdrajvftheremaininggadr tot the members can beVoldedqsoA that hey mi- JuSlOl ,1,11l1be33g-oiitf;successively t y. tThetalliinparallelrelationshiplivlth,each other: 85 e?" curves, for Y said`slotsor guide Ways: area-.amil are Aeompletely fliousedyivithinaheAQOPr plottedso';thatrsaid fmembers not Y:only Wiltetainer. is A iIclaim:. Y the foorrelcty relative". anglmwith. the remain;-v Y, l. yIn`an lin-strumentv 0f-L the :Chillilter .dewv ng'llhmbel .in lall.pOSVO'IVlS .from ,horizon-L f scribed,y .-a stocke member lprovided fwith; a tal'toapitclrWhielifmalresan..angleot-tuoplurality:ofcurvilinear.co-related slots G12-f with v110.IlZQlltel`illlQ-r AS befat@SSt-QIM guidewaysssa f correSpOndingf number; ofy

leveiassit-fis: theflever ,which ifs` mostcoimf spectively.,pivotallymountedin-oneret said: monly used `to determine the .setbecauseitu'slots or lguidevJ-ays saidastoelememhergconey,

and thus terms.` an vexact,A pivot j about 1 which ,7 0

indicates'dii ctlythepitchotithe roOKWh-h f is beingelht cuts 'for theyrafters, onlyy vvhenthe pitchesg onsvotsaidprootgarethe.sj 2. Inaninstrument@tithe har ci.

tor the @various po same. 'It' the pitch in the various portions f ofroofuvariesyit Will neces-sary for the operatorusing my instrument tochange the setting master lever Z to conform to the given pitch. In Fig.6 I show how the master lever (Z can be set for and illustrates how themembers e and Will disappear below the flanges ZL and z/ When the parts'are set to this degree and in Fig. l I show how the master lever can belset for a root' having an ordinary pitch and the remaining members willassume their correct p0 sit-ion relatively thereto. The members a t0 fare held in position Within the container g by tightening the nut Z5 inthe aperture n which terminates the slot-n at its i-nner end; Asheretofore described the shoulder (Z5 on said nut exactly fits saidaperture and thus When said nut is tightened the members can not movefrom place. To permit the members to be drawn :trom the container saidnut Z4 is slacked off on the threaded pin (Z5 and the master lever isdrawn outwardly 'trom said container so that the pivot reaches the upperend of said slot a bringing with it all of the other members a, Z), c, eand f respectively outwardly in their slots. When the members are inthis position they assume their 4correct relative position to saidmaster lever. The' nut Z4 is then tightened y ructeld. .vtoQbeunderstoodw that'fsaid device' Wil-l `.determine lall ',:angulgar Ystitutingj a containerf, li'

or f enclesingf the .pivotedgend :of saidgiemberst and;Qonnectingnmembers. pivotally attachedi to leaehaot the 1 Ypivoted ends 0f-Said.adjustable meinbersii; :C G" ,El

scribed, stoclmaneraber;fpi'ovidedf With plurality ofcurvilinear,co-related slots or guideways, acorresponding number of adjustable members each having one end pivotally mounted in one of saidslots or guide- Ways, respectively, said pivots being located asubstantial distance removed trom the latter end and connecting memberspivotally attached to each of the pivoted ends ot said adjustablemembers.

3. In aninstrument of the character described, a stock member providedWith a plurality of curvilinear co-related slots or guideways and acorresponding numberof adjustable members each having one end pivotallymounted in one otsaid slots or guideways, respectively, said pivotsbeing located a substantial distance removed from the latter end andconnecting members pivot-ally attached to each yof the pivoted ends ofsaid adjustable members, said connections being concealed Within saidstock member.

4. In an instrument of the character described a stock member composedof two separable halves and having a plurality of curvilinear slots orguideways in each half, a corresponding number of adjustable memberseach havingone end pivotally mounted in one ot said slots or guidevvays,respectively, and connecting members pivotally attached to each of thepivoted ends of said adjustable members.

5. In an instrument of the character described a stock member providedwith a plurality of curvilinear co-related slots or guidevvays, acorresponding number of adj ustable members each having one endpivotally mounted in one of said slots or guide- Ways, respectively, andconnecting members pivotally attached to each of the pivoted ends ofsaid adjustable members, one of said members being pivotally connectedto said stock member through a slot or guideway which opens into anaperture of larger diameter than the Width of said slot or guide- Way,means on said member adapted to engage said aperture to hold said memberin one position in said slot.

6. In an instrument of the character described, a stock member providedwith a plurality of curvilinear co-related slots or guidevvays, acorresponding number of adj ustable members each having one endpivotally mounted in one of said slots or guide- Ways, respectively, andconnecting members pivotally attached to each of the pivoted ends ofsaid adjustable members, one of said members being pivotally connectedto said stock member through a slot or guideway which opens into anaperture of larger diameter than the Width of said slot or guideWay, anut having a shoulder portion smaller' than the remaining portion ofsaid nut on said member adapted to engage said aperture to hlold saidmember in one position in said s ot.

7. In an instrument of the character described, a stock member providedWith a scribed, a stock member provided With a plurality of curvilinearco-related slots or guidevvays, a corresponding number of adjustablemembers each having one end pivotally mounted in one of said slots orguide- Ways, respectively, and connecting members pivotally attached toeach of the pivoted ends of said adjustable members, a flange on oneedge of said stock member having a graduated scale thereon, one of saidmembers being pivoted to register on said scale.

9. In an instrument of the character described, a, stock 'memberprovided with a plurality of curvilinear co-related slots or guideways,a corresponding number of adjustable members each having one endpivotally mounted in one of said slots 0r guide- Ways, respectively, oneof said members being pivotally connected to said stock me1n Y berthrough a slot or guideWay Which opens into an aperture of largerdiameter than the Width of said slot or guidevvay means on said memberadapted to engage said aperture to hold said member in one position insaid slot.

AXEL L. RU'IQUIST.

